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<?php
namespace Drupal\field_ui\Form;
use Drupal\Core\Entity\EntityForm;
use Drupal\Core\Field\FieldStorageDefinitionInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\field\Entity\FieldConfig;
use Drupal\field_ui\FieldUI;
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use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
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/**
* Provides a form for the "field storage" edit page.
*
* @internal
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*/
class FieldStorageConfigEditForm extends EntityForm {
/**
* The entity being used by this form.
*
* @var \Drupal\field\FieldStorageConfigInterface
*/
protected $entity;
/**
* {@inheritdoc}
*/
public function getEntityFromRouteMatch(RouteMatchInterface $route_match, $entity_type_id) {
// The URL of this entity form contains only the ID of the field_config
// but we are actually editing a field_storage_config entity.
$field_config = FieldConfig::load($route_match->getRawParameter('field_config'));
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if (!$field_config) {
throw new NotFoundHttpException();
}
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return $field_config->getFieldStorageDefinition();
}
/**
* {@inheritdoc}
*
* @param string $field_config
* The ID of the field config whose field storage config is being edited.
*/
public function buildForm(array $form, FormStateInterface $form_state, $field_config = NULL) {
if ($field_config) {
$field = FieldConfig::load($field_config);
$form_state->set('field_config', $field);
$form_state->set('entity_type_id', $field->getTargetEntityTypeId());
$form_state->set('bundle', $field->getTargetBundle());
}
return parent::buildForm($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function form(array $form, FormStateInterface $form_state) {
$form = parent::form($form, $form_state);
$field_label = $form_state->get('field_config')->label();
$form['#title'] = $field_label;
$form['#prefix'] = '<p>' . $this->t('These settings apply to the %field field everywhere it is used. These settings impact the way that data is stored in the database and cannot be changed once data has been created.', ['%field' => $field_label]) . '</p>';
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// See if data already exists for this field.
// If so, prevent changes to the field settings.
if ($this->entity->hasData()) {
$form['#prefix'] = '<div class="messages messages--error">' . $this->t('There is data for this field in the database. The field settings can no longer be changed.') . '</div>' . $form['#prefix'];
}
// Add settings provided by the field module. The field module is
// responsible for not returning settings that cannot be changed if
// the field already has data.
$form['settings'] = [
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'#weight' => -10,
'#tree' => TRUE,
];
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// Create an arbitrary entity object, so that we can have an instantiated
// FieldItem.
$ids = (object) [
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'entity_type' => $form_state->get('entity_type_id'),
'bundle' => $form_state->get('bundle'),
'entity_id' => NULL
];
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$entity = _field_create_entity_from_ids($ids);
$items = $entity->get($this->entity->getName());
$item = $items->first() ?: $items->appendItem();
$form['settings'] += $item->storageSettingsForm($form, $form_state, $this->entity->hasData());
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// Add the cardinality sub-form.
$form['cardinality_container'] = $this->getCardinalityForm();
return $form;
}
/**
* Builds the cardinality form.
*
* @return array
* The cardinality form render array.
*/
protected function getCardinalityForm() {
$form = [
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// Reset #parents so the additional container does not appear.
'#parents' => [],
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'#type' => 'fieldset',
'#title' => $this->t('Allowed number of values'),
'#attributes' => [
'class' => [
'container-inline',
'fieldgroup',
'form-composite',
],
],
];
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if ($enforced_cardinality = $this->getEnforcedCardinality()) {
if ($enforced_cardinality === FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED) {
$markup = $this->t("This field cardinality is set to unlimited and cannot be configured.");
}
else {
$markup = $this->t("This field cardinality is set to @cardinality and cannot be configured.", ['@cardinality' => $enforced_cardinality]);
}
$form['cardinality'] = ['#markup' => $markup];
}
else {
$form['#element_validate'][] = '::validateCardinality';
$cardinality = $this->entity->getCardinality();
$form['cardinality'] = [
'#type' => 'select',
'#title' => $this->t('Allowed number of values'),
'#title_display' => 'invisible',
'#options' => [
'number' => $this->t('Limited'),
FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED => $this->t('Unlimited'),
],
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'#default_value' => ($cardinality == FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED) ? FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED : 'number',
];
$form['cardinality_number'] = [
'#type' => 'number',
'#default_value' => $cardinality != FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED ? $cardinality : 1,
'#min' => 1,
'#title' => $this->t('Limit'),
'#title_display' => 'invisible',
'#size' => 2,
'#states' => [
'visible' => [
':input[name="cardinality"]' => ['value' => 'number'],
],
'disabled' => [
':input[name="cardinality"]' => ['value' => FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED],
],
],
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];
}
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return $form;
}
/**
* {@inheritdoc}
*/
protected function actions(array $form, FormStateInterface $form_state) {
$elements = parent::actions($form, $form_state);
$elements['submit']['#value'] = $this->t('Save field settings');
return $elements;
}
/**
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* Validates the cardinality.
*
* @param array $element
* The cardinality form render array.
* @param \Drupal\Core\Form\FormStateInterface $form_state
* The form state.
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*/
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public function validateCardinality(array &$element, FormStateInterface $form_state) {
$field_storage_definitions = \Drupal::service('entity_field.manager')->getFieldStorageDefinitions($this->entity->getTargetEntityTypeId());
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// Validate field cardinality.
if ($form_state->getValue('cardinality') === 'number' && !$form_state->getValue('cardinality_number')) {
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$form_state->setError($element['cardinality_number'], $this->t('Number of values is required.'));
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}
// If a specific cardinality is used, validate that there are no entities
// with a higher delta.
elseif (!$this->entity->isNew() && isset($field_storage_definitions[$this->entity->getName()]) && $form_state->getValue('cardinality') != FieldStorageDefinitionInterface::CARDINALITY_UNLIMITED) {
// Get a count of entities that have a value in a delta higher than the
// one selected. Deltas start with 0, so the selected value does not
// need to be incremented.
$entities_with_higher_delta = \Drupal::entityQuery($this->entity->getTargetEntityTypeId())
->condition($this->entity->getName() . '.%delta', $form_state->getValue('cardinality'))
->count()
->execute();
if ($entities_with_higher_delta) {
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$form_state->setError($element['cardinality_number'], $this->formatPlural($entities_with_higher_delta, 'There is @count entity with @delta or more values in this field.', 'There are @count entities with @delta or more values in this field.', ['@delta' => $form_state->getValue('cardinality') + 1]));
}
}
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}
/**
* {@inheritdoc}
*/
public function buildEntity(array $form, FormStateInterface $form_state) {
// Save field cardinality.
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if (!$this->getEnforcedCardinality() && $form_state->getValue('cardinality') === 'number' && $form_state->getValue('cardinality_number')) {
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$form_state->setValue('cardinality', $form_state->getValue('cardinality_number'));
}
return parent::buildEntity($form, $form_state);
}
/**
* {@inheritdoc}
*/
public function save(array $form, FormStateInterface $form_state) {
$field_label = $form_state->get('field_config')->label();
try {
$this->entity->save();
drupal_set_message($this->t('Updated field %label field settings.', ['%label' => $field_label]));
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$request = $this->getRequest();
if (($destinations = $request->query->get('destinations')) && $next_destination = FieldUI::getNextDestination($destinations)) {
$request->query->remove('destinations');
$form_state->setRedirectUrl($next_destination);
}
else {
$form_state->setRedirectUrl(FieldUI::getOverviewRouteInfo($form_state->get('entity_type_id'), $form_state->get('bundle')));
}
}
catch (\Exception $e) {
drupal_set_message($this->t('Attempt to update field %label failed: %message.', ['%label' => $field_label, '%message' => $e->getMessage()]), 'error');
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}
}
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/**
* Returns the cardinality enforced by the field type.
*
* Some field types choose to enforce a fixed cardinality. This method
* returns that cardinality or NULL if no cardinality has been enforced.
*
* @return int|null
*/
protected function getEnforcedCardinality() {
/** @var \Drupal\Core\Field\FieldTypePluginManager $field_type_manager */
$field_type_manager = \Drupal::service('plugin.manager.field.field_type');
$definition = $field_type_manager->getDefinition($this->entity->getType());
return isset($definition['cardinality']) ? $definition['cardinality'] : NULL;
}